256316951036 has 24 divisors (see below), whose sum is σ = 499937089680. Its totient is φ = 114271333632.

The previous prime is 256316950973. The next prime is 256316951041. The reversal of 256316951036 is 630159613652.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99192575 + ... + 99195158.

It is an arithmetic number, because the mean of its divisors is an integer number (20830712070).

Almost surely, 2^256316951036 is an apocalyptic number.

It is an amenable number.

256316951036 is a deficient number, since it is larger than the sum of its proper divisors (243620138644).

256316951036 is a wasteful number, since it uses less digits than its factorization.

256316951036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198387773 (or 198387771 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 47.

The spelling of 256316951036 in words is "two hundred fifty-six billion, three hundred sixteen million, nine hundred fifty-one thousand, thirty-six".